DeepSeek V4-Pro vs GPT-5.6 Luna
Both models are evenly matched
Arena ELO
Tie
Cheaper
Tie
Faster
Tie
Detailed Comparison
| Category | DeepSeek V4-Pro | GPT-5.6 Luna |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Context Window | 128K | 128K |
| Input Price ($/1M) | N/A | N/A |
| Output Price ($/1M) | N/A | N/A |
| Arena ELO | N/A | N/A |
| Coding | N/A | N/A |
| Reasoning | N/A | N/A |
| Speed (tokens/sec) | N/A | N/A |
| Open Source | No | No |
Frequently Asked Questions
Which has a larger context window?
DeepSeek V4-Pro supports 128K context, while GPT-5.6 Luna supports 128K.
Is DeepSeek V4-Pro or GPT-5.6 Luna open source?
DeepSeek V4-Pro is proprietary. GPT-5.6 Luna is proprietary.
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